Giving up sugar for 30 days

I want to give up refined and added sugar for 30 days. Hopefully will keep me motivated knowing it doesn't have to be short term. Obviously hoping I can continue afterwards.

I've read stuff from all over and my general plan is no unnecessary sugars- chocolate, cake, biscuits etc. I will cut out white bread, but will keep some carbs like brown rice. I don't think it's realistic for else to ditch carbs altogether. Not now anyway. I'm also going to eat some fruit, but will be careful how much and try to stick to lower sugar ones.

Has anyone done this? Is there a definitive book/website/plan. My main challenge is finding lunches to take to work. I have access to a microwave.